Grinding-mill



- *3. Sh t STRAUB' eetg Sheetl Flour, M111.

No. 11,181. 1 Patented June 27, 1854.

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I. STRAUB- Flour Mlll.

Patented June 27, 1854.

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Flour'Mill.

Patented June 27, 1854.

UNITED STATES PATENT OFFICE.

ISAAC STRAUB, OF CINCINNATI, OHIO.

GRINDING-MILL.

Specification of Letters Patent No. 11,181, dated June 27, 1854. e

To all whom it may concern:

Be it known thatI, ISAAC STRAUB, of the city of Cincinnati, in the State of Ohio, have invented a new and useful Flouring, Corn, and Corn and Cob Mill to be Propolled by AnimalPower. l j

The following is an exact description,

with the drawings referred to,-by letters and.

O, O, are side frame timbers 6 by 8 inches,

and 20 feet long.

21 are cross-ties, for position, see Figs. 1 and 2. l

27 is a supporting sill, see cross. section, Fig. 2. In the center of this sill is a strong pin 22. At the ends of this sill are steadying truck-wheels 23, Fig; 3, (to steady when in operation); the center pin 22 and wheels 23, restupomjand turn on the foundation 30, which is fastened on the ground work A.

The sill 27 is bolted to the side-timbers c, at a point, see Figs. 2 and 3; immediately over this sill is placed the bridge-tree 15; in the center of this is placed the step and spindle 14; at a certain point, see drawings,

is firmly fastened a face-plate, 33, whose diameter is something less than the mill stones; on its upper and outer edge is trued, to be at right angles to the axis of 14; near its outer edges is the pin 34, projecting upward. The lower mill-stone, 11, (which is the runner) built on an iron plate having a hole to correspond wit-h pin 34, drops on the pin, which is the driver; the plates on the lower side of mill-stone 11 is formed with a jog to drop on and over the faceplate 33, as shown at 28; a like plate is on any number of runner stones, so that any numbers of pairs can be used for different purposes, each one being detached. At the extreme upper end of 14 is the coupling 17, Figs. 2 and 3, for the object of extending the mill-spindle upward to floors overhead for the purpose of (when not grinding) ginning cotton, sawing and turning wood and iron, threshing grain, &c. The upper mill-stone is so constructed with projections 25, see drawings for position, Figs. 2 and 4;

these projections rest on tram-blocks 24; when the projections 25 rest on 24, the faces of the millstones are in tram, exactly parallel, and never can get out of tram; these tram-blocks 24 is a perpetual mode of and unerring tramming, never to be attended to by the miller. These tram-blocks. will exactly suit any number ofupper mill-stones, all having the projections 25. The tramblocks 24 stand on the framework, it, this again is secured to the posts, G. On the upper endsof the posts G, is a fixture 19, into which the boxing, or bearing of the upper end of the mill spindle 14, is carried, as well as the hopper, 18. The rods 26, Fig. 3, are truss-rodsto regulate and hold up the bridge-tree. At a proper place on the spindle 14, say two inches above the upper millstone 12, is noticed a cast-iron'13, Figs. 2, 3, 4, 5 and 6, whose vertical cross section is say 4 inches and diameter 8 inches, full of sharp teeth, all-around the verge or outside, an oval hole through its center, this is passed on the spindle 14; see its position carried on a shoulder on 14, say 2 inches above this upper millstone 12., On its upper face is a circular incline-plane from a to 9, see Figs. 2, 3, 4, 5, and 6; on the whole of this circular incline-plane is fastened with screw bolts a wrought iron plate, whose end at a is a steel knife; the end at g, is movable, can beraised up (if wanted) and underlayed, to make less distance. from g to a; when constructed, it will be remembered that when in motion (for it runs with the mill spindle) the knife (4 is the head end. Outside and around 13, is a cast shell or ring 16, a little higher than 13; the inside of 16 is a series of straight lines, see 0, 0, o, 0, 0, Fig. 6, and its clear diameter is one inch greater than the points of the teeth on 13; the object of those straight lines 0, 0, 0, 0, 0, is to produce a rolling process, which a smooth circle would not do, as the object is only to split and not pulverize (that is done by the millstone) on the ring 16 is placed a cover 44, and secured by bolts 45. At a suitable place on this cover is placed a tube near 3v inches in its clear. diameter, see 31 (through which the ears of corn pass) 0n the underside of this cover and near the opening of the tube 31 is fastened a steel knife, the knife a, on 13, just passing under this, the two knives forming a complete pair of shears by means of the ajustability of the plate at g, the shears can be made to out fast or slow to suit roller, 6, this I make of cast iron 18 inches on the face, large diameter 26 inches, small nearly 23 inches; strong cast iron heads are fixed in the several diameters, the whole being a case which I fill with heavy boulder rocks or their equivalents and calcined.

plaster Paris, or any grouting substance, weight and cheapness, being the object to prevent slipping; the incline of the floor B corresponds with the conic form of the roller, the length of face, and great weight of charging as described, the object is obtained without the expense of cog-work as formerly.

The roller 6, is placed on the circular floor B, corresponding to a radius of eleven feet from the center-pin 22, to its greatest diameter; through the roller 6 passes the shaft d, Whose end rests on the cross-tie 21; at a proper point, the bevel wheel 7 this works into the bevel pinion 8; this is on the counter turns pinion l0, and this being made fast to the mill spindle 14.

At 29, animal power is attached; on account of form and weight a strong contact on the floor B, causes a revolving of the millstone; with much power, the construction of the gearing turns the spindle 14, 150 revolutions for one round for the horse.

Having thus fully described the construction and operation of my mill,'what I claim therein as new and desire to secure by Letters Patent, is

The combination of the permanently adjusted tram blocks 24:, for supporting the upper stone, and the bridge tree 15 which is adjustable at both its ends, for supporting and adjusting the spindle and the lower stone or runner upon it, to the upper stone, substantially as described.

ISAAC STRAUB.

Witnesses SOLOMON TICE, H. P. STRAUB. 

